Publications by authors named "Nelda P Wray"

Objective: To test the hypothesis that compared with daily soap and water bathing, 2% chlorhexidine gluconate bathing every other day for up to 28 days decreases the risk of hospital-acquired catheter-associated urinary tract infection, ventilator-associated pneumonia, incisional surgical site infection, and primary bloodstream infection in surgical ICU patients.

Design: This was a single-center, pragmatic, randomized trial. Patients and clinicians were aware of treatment-group assignment; investigators who determined outcomes were blinded.

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Duration Of Initiative: 48 months and currently ongoing.

Setting: The Houston Methodist Hospital System and affiliated hospitals (3 facilities with 2 hospital-run skilled nursing facilities in and around Houston), St. Joseph’s Regional Health Center (1 acute care hospital and 2 skilled nursing facilities in Bryan, Texas), Hospital Corporation of America (2 acute care facilities in Houston, 1 acute care facility in McAllen, Texas [Rio Grande Valley]), Kindred Healthcare (2 long term acute care facilities in Houston), Select Medical Specialty Hospitals (2 long term acute care facilities in Houston).

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Objective: To establish a baseline for the incidence of sepsis by severity and presence on admission in acute care hospital settings before implementation of a broad sepsis screening and response initiative.

Methods: A retrospective cohort study using hospital discharge abstracts of 5672 patients, aged 18 years and above, with sepsis-associated stays between February 2012 and January 2013 at an academic medical center and 5 community hospitals in Texas.

Results: Sepsis was present on admission in almost 85% of cases and acquired in-hospital in the remainder.

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Unlabelled: The purpose of this study was to determine whether stress myocardial perfusion (SPECT) optimized with stress-only (SO) imaging is comparable to cardiac CT angiography (CTA) for evaluating patients with acute chest pain (ACP).

Methods: This was a prospective randomized observational study in 598 ACP patients who underwent CTA versus SPECT. The primary endpoint was length of hospital stay, and secondary endpoints were test feasibility, time to diagnosis, diagnostic accuracy, radiation exposure, and overall cost.

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Background: Sepsis is a leading cause of death, but evidence suggests that early recognition and prompt intervention can save lives. In 2005 Houston Methodist Hospital prioritized sepsis detection and management in its ICU. In late 2007, because of marginal effects on sepsis death rates, the focus shifted to designing a program that would be readily used by nurses and ensure early recognition of patients showing signs suspicious for sepsis, as well as the institution of prompt, evidence-based interventions to diagnose and treat it.

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Purpose: The hypothesis that spondylolysis (SL) and/or isthmic spondylolisthesis (IS) cause low back pain (LBP) is widely accepted representing surgical indication in symptomatic cases. If SL/IS cause LBP, individuals with these conditions should be more prone to LBP than those without SL/IS. Therefore, the goal of the study was to assess whether the published primary data demonstrate an association between SL/IS and LBP in the general adult population.

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Background: As national quality initiatives are increasing requirements for individual physician data, our department of surgery initiated a surgeon-specific reporting (SSR) program to assess the value of personal knowledge on individual performance quality. We sought to evaluate the use of SSR as a tool to enable surgeons to assess and improve their clinical performance, and to identify barriers to use of their reports.

Study Design: Qualitative research design involving semistructured interviews of surgeons who received performance reports derived from National Surgical Quality Improvement Program (NSQIP), Surgical Care Improvement Project (SCIP), and the Centers for Medicare and Medicaid Services (CMS) core measures and hospital administrative data.

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Background: Many published accounts of clinical trials report no differences between the treatment arms, while being underpowered to find differences. This study determined how the authors of these reports interpreted their findings.

Study Design: We examined 54 reports of surgical trials chosen randomly from a database of 110 influential trials conducted in 2008.

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Background: Regulatory and professional bodies issue an ever-increasing number of guidance documents on the ethics and methods of clinical trials, but the quality of clinical trials of invasive therapeutic procedures continues to be a concern. We interviewed aspiring and accomplished surgical trialists to understand how they use guidance documents and other resources in their work.

Methods: We performed a qualitative research study involving semistructured interviews of a diverse sample of 15 surgical trialists.

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Utilizing a sorted compendium of international clinical trial standards, investigators identified 15 conflicts among ethical and methodological guidance. Analysis distinguishes interpretational issues, lack of clarity, and contradiction as factors to be addressed if international trial guidance is to be improved.

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Background: If trials of therapeutic interventions are to serve society's interests, they must be of high methodological quality and must satisfy moral commitments to human subjects. The authors set out to develop a clinical-trials compendium in which standards for the ethical treatment of human subjects are integrated with standards for research methods.

Methods: The authors rank-ordered the world's nations and chose the 31 with >700 active trials as of 24 July 2008.

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Objective: To develop a preliminary version of a post-doctor visit self-assessment tool that patients with hypertension can use to evaluate their communication behaviors. High-quality communication between patient and doctor may have a positive effect on blood pressure control in hypertensive patients. Patients' communicative behaviors such as asking questions influence those of doctors, but most existing measurement tools assess doctors' behaviors rather than patients'.

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Objective: Our goal was to develop an interactive DVD to help African American and Caucasian American adults with hypertension learn how to become better communicators during medical interactions. Material was to be presented in several formats, including patients' narratives (stories).

Methods: To develop the narratives we recruited members of the target audience and elicited stories and story units in focus groups, interviews, and seminars.

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Background: Racial/ethnic health care disparities are well described in people living with HIV/AIDS, although the processes underlying observed disparities are not well elucidated.

Methods: A retrospective analysis nested in the University of Alabama at Birmingham 1917 Clinic Cohort observational HIV study evaluated patients between August 2004 and January 2007. Factors associated with appointment nonadherence, a proportion of missed outpatient visits, were evaluated.

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Background: No national data exist regarding racial/ethnic differences in the use of interventions for patients at the end of life.

Objectives: To test whether among 3 cohorts of hospitalized seriously ill veterans with cancer, noncancer or dementia the use of common life-sustaining treatments differed significantly by race/ethnicity.

Design: Retrospective cohort study during fiscal years 1991-2002.

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Background: Despite recent high-quality evidence for their cost-effectiveness, thiazides are underused for controlling hypertension. The goal of this study was to design and test a practice-based intervention aimed at increasing the use of thiazide-based antihypertensive regimens.

Methods: This quasi-experimental study was carried out in general medicine ambulatory practices of a large, academically-affiliated Veterans Affairs hospital.

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Obstructive lung diseases are associated with high rates of depression and anxiety, yet many patients are never screened or treated. This study evaluated the five-question Depression and Anxiety modules of the Primary Care Evaluation of Mental Disorders (PRIME-MD) Patient Questionnaire as a telephone screen in 1,632 patients with chronic breathing disorders at a Veterans Affairs Medical Center in Houston, TX. Subsequent testing of 828 patients with the Beck Depression Inventory-II and the Beck Anxiety Inventory showed that the sensitivity and specificity, respectively, of the Depression and Anxiety modules of the PRIME-MD Patient Questionnaire screening were 94.

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Objective: Screening for mental illness in primary care is widely recommended, but little is known about the evaluation, treatment, and long-term management processes that follow screening. The aim of this study was to examine and describe the quality of mental health care for persons with chronic obstructive pulmonary disease (COPD) and anxiety/depressive disorders, as measured by adherence to practice guidelines.

Method: This retrospective chart review examined data for 102 primary care and mental health care patients with COPD who were diagnosed, using Structured Clinical Interview for DSM-IV criteria, with major depressive disorder, dysthymia, depression not otherwise specified, generalized anxiety disorder, or anxiety not otherwise specified.

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Although rarely studied, physician-patient interactions immediately following diagnostic tests are significant medical events because during these encounters the physician and patient often make decisions about major and sometimes invasive treatment. This investigation analyzed patterns of physician-patient communication following coronary angiography with particular attention to behaviors important to decision-making: physician information-giving, physician use of partnership-building, and active forms of patient participation (e.g.

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Study Objectives: The objectives of this study were to assess the prevalence, screening, and recognition of depression and anxiety in persons with chronic breathing disorders, including COPD.

Design: Cross-sectional study.

Setting: The Michael E.

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Objectives: Percutaneous endoscopic gastrostomy (PEG) tube placement is a widely used method for long-term enteral feeding of demented patients unable to take sufficient food by mouth. National time trends in PEG tube use over the last decade have not been previously reported. The objective of this study was to determine whether use of PEG tubes for patients with dementia has changed over time and by race.

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Background: Hospital profiles are increasingly constructed using risk-adjusted clinical data abstracted from patient records.

Objective: We sought to compare hospital profiles based on risk adjusted death within 30 days of surgery from administrative versus clinical data in a national cohort of surgical patients.

Design: This was a cohort study that included 78,546 major noncardiac operations performed between October 1, 1991 and December 31, 1993 in 44 Veterans Affairs hospitals.

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Background: Risk-adjusted outcome rates frequently are used to make inferences about hospital quality of care. We calculated risk-adjusted mortality rates in veterans undergoing isolated coronary artery bypass surgery (CABS) from administrative data and from chart-based clinical data and compared the assessment of hospital high and low outlier status for mortality that results from these 2 data sources.

Study Population: We studied veterans who underwent CABS in 43 VA hospitals between October 1, 1993, and March 30, 1996 (n=15,288).

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Background: Many healthcare organizations use diagnosis-based risk adjustment systems for predicting costs. Health self-report may add information not contained in a diagnosis-based system but is subject to incomplete response.

Objective: The objective of this study was to evaluate the added predictive power of health self-report in combination with a diagnosis-based risk adjustment system in concurrent and prospective models of healthcare cost.

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